Product Data Sheet
75 W
ATT
S
INGLE
O
UTPUT
H
IGH
D
ENSITY
DC/DC C
ONVERTER
VKA75xS Series.
FEATURES
!
18 - 36V & 33 - 75V INPUT RANGE
!
SMALL SIZE: 2.28" X 2.4" X 0.50"
!
HIGH EFFICIENCY: 87% TYPICAL AT 5V
!
100碌S TRANSIENT RESPONSE 50-100% LOAD STEP
碌
!
420kH
Z
FIXED-FREQUENCY OPERATION
!
OPERATION TO +100擄C BASEPLATE TEMP.
!
PRIMARY REMOTE ON/OFF, CHOICE OF POS/NEG
LOGIC
!
ADJUSTABLE OUTPUT VOLTAGE
!
REMOTE SENSE
!
CONTINUOUS SHORT-CIRCUIT PROTECTION
!
THERMAL SHUTDOWN
!
SAFETY PER UL1950, EN 60950 AND CSA 22.2 #234
!
CASE GROUND PIN
DESCRIPTION
The VKA75xS Series DC/DC converters present an eco-
nomical and practical solution for distributed power
system architectures which require high power density
and efficiency while maintaining system modularity and
upgradeability. With the ability to operate over a wide
input voltage range of 18 to 36 and 33 to 75 volts, these
modules are ideal for use in battery backup applications
common in todays' telecommunication and electronic
data processing applications. The output is fully isolated
from the input, allowing for a variety of polarity and
grounding configurations.
The VKA75xS's proprietary control circuitry responds to
50-100% load steps in 100碌Seconds to within 1% nomi-
nal Vout.
The patented fixed frequency architecture combined with
surface mount technology results in a compact, efficient
and reliable solution to DC/DC conversion requirements.
Efficiency(%)
Input
Model
VKA75MS02
VKA75MS03
VKA75MS05
VKA75MS12
VKA75MS15
VKA75MS24
(33-75)
48VDC
Efficiency(%)
Input
Model
VKA75LS02
VKA75LS03
VKA75LS05
VKA75LS12
VKA75LS15
(18-36)
24VDC
V
OUT
2.0V
3.3V
5.0V
12.0V
15.0V
24.0V
I
OUT
(A)
15.0
15.0
15.0
6.3
5.0
3.1
Note (1)
V
OUT
2.0V
3.3V
5.0V
12.0V
15.0V
24.0V
I
OUT
(A)
15.0
15.0
15.0
6.3
5.0
3.1
76
81
86
88
89
89
Note
(1)
Voltage (VDC)
Min
75
80
85
87
88
89
Typ
76
81
86
88
89
90
Voltage (VDC)
Min
Typ
77
82
87
89
90
90
AGENCY APPROVALS
VKA75xS Rev C 3/2001
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